The Complete Guide On How To Measure For A Suit

Purchasing suits online is no longer difficult with our guide on how to measure for a suit. Simply follow the below instructions on how to measure yourself to ensure that you achieve the perfect fit when buying a suit online. 


As a rule of thumb please do not assume your sizes based on casual clothing these are usually wrong and invariably do not reflect your actual size. If however you already wear tailoring regularly you should be able to accurately select your size. You can also measure garments you already own with a tape measure. If a for instance a pair of jeans fits you well you can simply measure across the waistband, but please ignore the size label these are usually incorrect.

You will need to wear a close-fitting t-shirt when measuring yourself for a suit to ensure an accurate measurement. You will also need a cloth tape measure sometimes the help of another person is preferable but not essential.

Once you have your basic measurements, feel free to get in touch with us for further assistance on how to buy your suit online. But in the meantime, here is a guide:


Long/Short Fitted Suits:

First on how to measure yourself for a suit would be considering the length. When ordering long or short fitted suits, here are the rules that you must follow:

  • If you are under 5'8" in height, opt for a short fitting suit
  • If you are 6'3" or over, a long fitting is advisable

Remember, this is a guide only as regular fit suits can be altered to fit. (ie sleeves can be shortened or lengthened and trousers can also be altered.)


Chest Measurement

When thinking about how to measure a man for a suit, you need to measure the chest for shirts, waistcoats and jackets. To measure accurately, place your measuring tape under your arms, around the widest part of your back and across your chest as shown on the image.

Ensure that you don't pull the tape tight to your chest, making sure to give 2 or 3 fingers of movement under the tape measure. Leaving this space ensures that you have a comfortable, tailored fit without the final piece being too tight.


chest measuring for a suit


Crown to Cuff

The crown to cuff measurement determines the length of your jacket sleeve. This measurement must be correct if you want to show your shirt cuff below your jacket sleeve.

To get an accurate measurement, pull the tape from the middle of your shoulder’s crown down to your wrist.

crown to cuff measurement


Back length

The back length can vary from brand to brand, and it depends on personal preference.

If you already have a jacket that you like the length of, we advise that you use this as a reference.

Measure from below the collar stand down to the hem of your preferred jacket length.

Alternatively, if you do not have a jacket for reference, hold your arm straight down to your side, and measure your back length until it is in line with your knuckle.

back length measurement


Trouser Inside Leg and Outside Leg

When measuring your inside and outside leg length, it is vital to have your trousers sitting where you usually wear them. You will also need to consider where you want them to sit on your shoes.

For your inside leg measurement, place the tape measure on top of the inside leg and measure down to the hem, or wherever you would like the trouser to sit, pulling the tape measure tight as you do so.

For the outside leg measurement, measure from the top of the waist to the base of your shoe, excluding the heel.

inside leg


Jacket Waist Measurement

Understanding how to measure for a suit jacket to suit your figure and body structure is crucial as this gives the all-important fitted look.

Firstly, ensure that you measure the narrow section above your hips and below your chest; this is your natural waist. Pull the tape measure firm but not too tight as this provides room for adjustment.

If you’re looking for a slimmer fit, we can always tweak this if you visit us in our Hull store.

jacket waist measurement


Centre Back

Generally, we would measure for the centre back measurement from the middle of your back to your arm’s inside. For ease of measurement, please measure the entire span of your back.

Notice on the example photo that we measure from the broadest part of the shoulder across to the other when showing how to measure for a suit.

    centre back measurement


    Trouser Waist Measurement

    Next up on how to measure for a suit in the UK is the trousers. This measurement differs from your natural waist measurement.

    Trousers sit slightly higher than jeans which is why you need to pull your trousers up to your waist before measuring. 

    Measure around your waist where your trouser waistband sits. Then pull the tape measure firm but not too tight. 

    The waist measurement on suit trousers is designed for easy alterations to get that perfect tailored fit. Waist measurements may vary with different manufacturers, making this an essential measure.

      trouser waist measurement


      Trouser Seat Measurement

      The seat measurement is the most crucial trouser measurement because this cannot be altered easily.

      For the trouser seat measurement, stand with your feet parallel and pull the measuring tape around the seat’s most prominent part and around your hips. Measure firmly but not too tight.

      The seat measurement is usually more pronounced for athletes, which often means you need to go up a trouser size and have the waist reduced.

      Make sure to follow every step of this simple guide on how to measure for a suit and you will have no trouble in purchasing a ready to wear suit or shopping for suits online.


      trouser seat measurement 


      We hope you found this helpful and straightforward but If you have any questions about any of your body measurements or anything suit related, feel free to get in touch with our expert team who are always on-hand to offer their advice. Check out our guide on how to measure for collar size if you need further assistance.